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LTC2877IDD#TRPBF - Analog Devices

Description: ±60V Rugged PROFIBUS RS485 Transceivers

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LTC2877IDD#TRPBF - Analog Devices - PCB symbol
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LTC2877IDD#TRPBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DD 10-Lead Plastic DFN (3mm × 3mm)
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LTC2877IDD#TRPBF - Analog Devices - 3D model - Small Outline No-lead - DD 10-Lead Plastic DFN (3mm × 3mm)
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LTC2877IDD#TRPBF Details

  • Manufacturer Part Number:

    LTC2877IDD#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    DFN-10

  • Pin Count:

    10

  • Manufacturer Package Code:

    05-08-1699

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATE WITH 3V SUPPLY

  • Differential Output:

    YES

  • Driver Number of Bits:

    1

  • High Level Input Current-Max:

    0.00002 A

  • Input Characteristics:

    DIFFERENTIAL SCHMITT TRIGGER

  • Interface IC Type:

    LINE TRANSCEIVER

  • Interface Standard:

    EIA-422; EIA-485

  • JESD-30 Code:

    S-PDSO-N10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    DIFFERENTIAL

  • Output Low Current-Max:

    0.003 A

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    SOLCC8,.12,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Receive Delay-Max:

    70 ns

  • Receiver Number of Bits:

    1

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max:

    1.2 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Transmit Delay-Max:

    50 ns

  • Width:

    3 mm

LTC2877IDD#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC2877 involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer board with a dedicated layer for the analog signals, and to keep the digital signals away from the analog signals.
  • To ensure reliable communication, make sure to use a reliable communication protocol such as SPI or I2C, and implement error checking and correction mechanisms. Additionally, use a pull-up resistor on the SCL/CLK line and a pull-down resistor on the SDA/DATA line, and ensure that the microcontroller and LTC2877 are operating at the same voltage level.
  • The maximum cable length for the RS-485 interface of the LTC2877 depends on the data rate and the cable characteristics. As a general rule, the maximum cable length is around 4000 feet (1219 meters) at a data rate of 100 kbps, but it can be shorter for higher data rates or longer for lower data rates. It's recommended to use a cable with a characteristic impedance of 120 ohms and to terminate the cable with a 120-ohm resistor at each end.
  • To protect the LTC2877 from ESD and other transient events, use ESD protection devices such as TVS diodes or ESD arrays on the input lines, and ensure that the device is powered up and down slowly to prevent voltage spikes. Additionally, use a bypass capacitor on the power supply lines and a ferrite bead on the RS-485 lines to filter out high-frequency noise.
  • The recommended power-up sequence for the LTC2877 is to power up the VCC supply first, followed by the VIO supply, and then the VDD supply. This ensures that the internal voltage regulators are powered up in the correct order and prevents any potential latch-up or damage to the device.

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LTC2877IDD#TRPBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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